Companion

Position FAB at the bottom of the screen in the center, above the NavigationBar (if it exists)

Position FAB at the bottom of the screen at the end, above the NavigationBar (if it exists)

Position FAB at the bottom of the screen at the end, overlaying the NavigationBar (if it exists)

Position FAB at the bottom of the screen at the start, above the NavigationBar (if it exists)